Systematics of angular-dependent neutron production by 585 MeV protons on targets with12 ≤ A ≤ 238: Validation of intranuclear cascade-evaporation model calculations

1987 ◽  
Vol 36 (5) ◽  
pp. 1988-1994 ◽  
Author(s):  
D. Filges ◽  
P. Cloth ◽  
T. W. Armstrong ◽  
S. Cierjacks ◽  
Y. Hino ◽  
...  
Keyword(s):  
Neutron Production ◽  
Model Calculations ◽  
Evaporation Model ◽  
Intranuclear Cascade ◽  
Mev Protons

scholarly journals Yield of deep spallation products of medium to heavy mass targets bombarded with 480 MeV protons

1980 ◽  
Vol 58 (6) ◽  
pp. 891-899 ◽  
Author(s):  
H. Dautet ◽  
G. Bischoff ◽  
J. M. D'Auria ◽  
B. D. Pate
Keyword(s):  
Cross Sections ◽  
Gas Jet ◽  
Evaporation Model ◽  
Intranuclear Cascade ◽  
Medium Mass ◽  
Mev Protons

Absolute cross sections for short-lived alpha emitting, very neutron deficient nucleides resulting from the interaction of 480 MeV protons with several medium mass targets (Ho, Tm, Re, Ta, Au) have been measured at the TRIUMF facility (Vancouver, Canada). Activities were transported using a gas jet system and relative transport efficiencies for products of various Z were measured. Calculations for the production of such deep spallation products were performed using the empirical Silberberg–Tsao method and the more fundamental, intranuclear cascade – evaporation model, and compared against the observed values.

scholarly journals Neutron Production in Thick Targets Irradiated with High-Energy Ions

2011 ◽  
Vol 2011 ◽  
pp. 1-12 ◽  
Author(s):  
S. R. Hashemi-Nezhad ◽  
M. Zamani-Valasiadou ◽  
M. I. Krivopustov ◽  
R. Brandt ◽  
W. Ensinger ◽  
...  
Keyword(s):  
Yield Curve ◽  
Product Yield ◽  
Heavy Ion ◽  
High Energy ◽  
Neutron Production ◽  
Point Of View ◽  
Model Calculations ◽  
Ion Interactions ◽  
Fundamental Point ◽  
Primary Ions

The neutron production in thick targets irradiated with 1 GeV protons was studied experimentally, and results are well understood with model calculations, including MCNPX 2.7a. However, one observes very large neutron production rates in the interaction of 44 GeV 12C onto thick Cu-, Pb-, and U-targets beyond calculated rates. The experimental spallation product yield curve in a 20 cm thick Cu target irradiated with 72 GeV 40Ar also cannot be reproduced by several model codes, including MCNPX 2.7a. This may be due to secondary fragments produced in high energy ( GeV) heavy-ion interactions which destroy target nuclei more effectively than primary ions. These observed experimental facts constitute “unresolved problems” from a fundamental point of view. It may have an impact on radiation protection issues for future heavy-ion accelerators.

Compound nuclear evaporation model calculations in the massA∼50andA∼80regions

1983 ◽  
Vol 27 (6) ◽  
pp. 2679-2687 ◽  
Author(s):  
L. V. Theisen ◽  
L. R. Medsker ◽  
S. L. Tabor
Keyword(s):  
Model Calculations ◽  
Evaporation Model

Calculated Neutron Production by 190- to 268-MeV Protons in a Water-Cooled Tantalum Target

1982 ◽  
Vol 80 (3) ◽  
pp. 452-455
Author(s):  
R. G. Alsmiller ◽  
J. Barish ◽  
J. M. Barnes ◽  
R. T. Santoro
Keyword(s):  
Neutron Production ◽  
Tantalum Target ◽  
Mev Protons

scholarly journals Systematics of 0° neutron production by 800 MeV protons on targets with27≤A≤238

1978 ◽  
Vol 18 (3) ◽  
pp. 1418-1425 ◽  
Author(s):  
B. E. Bonner ◽  
J. E. Simmons ◽  
C. R. Newsom ◽  
P. J. Riley ◽  
G. Glass ◽  
...  
Keyword(s):  
Neutron Production ◽  
Mev Protons
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